oracle 12c new features for dba

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Prepare to Upgrade ORACLE to learn new 12C features

explicitly inserted; METADATA-ONLY default value refers to the default value specified when a new column is added, and the difference in 11g is that, the default value of 11g must be not null. 3. extend the length limit of multiple data types: Increase the VARCHAR2, NVARCHAR2, and RAW types to 32 K, set compatibility to 12.0.0.0 or above, and set the initialization parameter MAX_ SQL _STRING_SIZE to EXTENDED, this function does not support CLUSTER ta

New Features of Oracle 12c: Paging Query

The new feature of Oracle 12c paging query is expected in the upcoming oracle 12c release. This is the optimization of paging query. There are many paging query functions in the application. Previously we used rownum for this purpose.For example, to query 1-10 records, the q

Oracle 12c new features VARCHAR2 length maximum support up to 32767

Prior to the Oracle 12c version, the VARCHAR2 and NVARCHAR2 data types had a maximum length of 4000, with the extended maximum of 12c versions supported to 32767, or 32KB, and parameter Max_string_ The size is the maximum length of the extended data type that controls the extended datatype: Standard: Represents the length limit before

Oracle Database 12c new features: In-memory Option

table is automatically added to thein-memory Area, compression and other genera.Optimizer_inmemory_awareSaidOptimizerWhether theinmemorySupport. Inmemory_sizeis a static parameter, the change requires that the instance be restarted to take effect. provided to in memory is used from SGA is allocated in the space, dividing a single area of memory to im-memeory function using . Called in-memory area , in-memory the larger the memory area, the better, so that more data is stored in memory, in-

Oracle 12c Database dba Getting Started directory

Recovery24.2 cold and recovery in non-archive modeSteps to 24.2.1 ColdRecovery of 24.2.2 Cold prepared24.2.3 Missing Redo log File recovery method24.3 Archive mode and non-archive mode24.3.1 Setting the archive mode of the database24.3.2 Setting the archive process parameters24.3.3 Managing archive files and archive directories24.4 steps to manually hot-standby a database24.5 How to deal with database crashes during hot standby24.6 Principle of hot preparation24.7 Backup Control files24.8 Princ

Oracle 12c Database DBA Entry Guide Directory

Dangdang page Link: Http://product.dangdang.com/23625712.html The 1th chapter Oracle Database Basic knowledge1.1 What is a relational database1.1.1 Relational Database modelFounder of 1.1.2 Relational data model1.2 Oracle Database Development historyThe beginning of 1.2.1 Company1.2.2 Oracle Database development process1.3 Database RDBMS1.4 SQL Language Introduct

Oracle Database 12c 16 Features Summary

to ASM: sql > ALTER DATABASE MOVE datafile '/u00/data/users_01.dbf ' to ' +dg_data '; migrating data files from one ASM disk group to another ASM disk group : SQL> ALTER DATABASE MOVE DataFile ' +dg_data/dbname/datafile/users_01.dbf ' to ' +dg_data_02 '; overwrites the data file with the same name if it already exists in the new path: SQL> ALTER DATABASE MOVE DataFile '/u00/data/users_01.dbf ' to '/u00/data_new/users_01.dbf ' r

Oracle new features 4-maintenance, upgrade, recovery and data pump, and oracle New Features

Oracle new features 4-maintenance, upgrade, recovery and data pump, and oracle New Features 1. Contents 1) enhanced table partition maintenance. 2) Database Upgrade and improvement. 3) Restore/restore data files across networks. 4

The "ORACLE12C" Deployment service establishes the user and the problems encountered in building the database and some new features of 12C

This is an Oracle small white unbearable torture, struggling to make, the cost of painstaking efforts.Differences between ORACLE12C and 11g versionsA problem was encountered while creating the user (my findings are based on the problems encountered):Problem Description:Prompt for ORA-65096 when creating the required user for the service: the public user name or role is invalid.Cause of the problem:According to Oracle's official documentation, the

Goldengate 12c 12.2 New features

platform called Goldengate STUDIO, a graphical interface that helps to quickly configure and deploy Ogg. Use mouse clicks and drag to implement Ogg deployment without worrying about the underlying details. The idea of OGG Studio is that first there will be a project, and then there are multiple solutions, each of which includes multiple logical designs and multiple physical deployments. Ogg Studio already has multiple out-of-the-box scenario templates, such as cascading, bidirectional, unidirec

Oracle 12c creates a new DB instance, user

/oracleSql> Conn system/oracleconnected.sqlSelect name from V$datafile;name----------------- ---------------------------------------------------------------/u01/app/oracle/oradata/mydb/system01.dbf /u01/app/oracle/oradata/mydb/sysaux01.dbf/u01/app/oracle/oradata/mydb/undotbs01.dbf/u01 /app/oracle/oradata/mydb/users01.

Explain some new features worthy of DBA attention in DB2 9.7

BKJIA exclusive Article: First of all, this article is not a detailed list of new features of DB2 9.7. I only list a list that is very important to DBAs or developers. Online solution Modification Please refer to Burt's article on online solution modification at: http://www.ibm.com/?works/data/library/techarticle/dm-0907db2outages/index.html. CGTT-create a global temporary table Now you can create a global

Atitit. Oracle 9 10 11 12 new features attilax summary, oracle12c New Features

Atitit. Oracle 9 10 11 12 new features attilax summary, oracle12c New Features New Features of atitit. Oracle 9 10 11 12 1.

Oracle DB 12c new feature: Raw device is no longer supported by bare devices

Label:Oracle DB 12c new feature: Raw device is no longer supported. Reference from:Announcement of De-support of using RAW devices in Oracle Database Version 12.1 (Doc ID 578455.1) Details:De-support of RawThe directory for this article is a notification that the raw device is no longer supported in the Oracle Database

Oracle 12C-Create a new PDB using the seed PDB

//issuing CREATE PLU Ggable DATABASE statement, or specify//File_name_convert clause as a part of the statement. If no db_create_file_ is specified The Dest parameter requires you to manually specify File_name_convert when you create pluggable database, for example: sql> Create pluggable Database yb1 Admin user yb1 ident Ified by Yb1 file_name_convert= ('/u12/app/oracle/oradata/ora12/pdbseed/', '/u12/app/oracle

What Oracle DBA must understand in the new environment

backup method and policy? What is the network file configuration? 19. Check the recent alert logs to obtain useful information. 20. run several performance analysis reports to see how the system is running recently. 21. Run an RDA report to collect the complete system status report. Well, with this basic information (incomplete), you have a general understanding of the system you are new to. Next, you can analyze it in depth, then we will formulate a

Oracle 12C-Use local PDB to clone new PDB

1. The PDB to be used for cloning as read-only status: Startup Open Read OnlySelect from V$pdbs; con_id NAME open_mode-------------------------------------------------- 2 pdb$seed READ only 3 PDB1 Mounted 4 P4 mountedsqlset container=pdb1; SQL> ALTER DATABASE open Read only;2. Login CDBSql> Connect/ asSysdbasql> Create pluggable Database pdb2 fromPDB1 file_name_con

Introduction to Oracle 18C new features

Tags: Oracle 18C new featuresThe Oracle 18c was released in 2018-02-16 or with Oracle's cloud first concept, and 18c is now available on cloud and engineered Systems. Oracle 18c claims to be an autonomous database that reduces the work of many DBAs, and does a lot of DBA wor

2016-12-1 new ideas-Want to obtain Oracle DBA

Tags: training institutions RAC training database ACL android Oracle database ora AgencyNow that I've been testing, I've learned about Android before, I've been through some databases, I didn't know much about it, and I'm not sure how to get Oracle DBA to do a preliminary plan here:1. Search for the process of obtaining an Or

Backup and availability features for Oracle 10g R2 new features

Oracle's Own backups Until now, many developers have recognized the potential of RMAN and its usefulness as a database backup tool. You may recall that RMAN can back up data directly to disk and tape. When a tape solution is involved, RMAN manipulates the tape subsystem using an API called Media Management Library (MML). This MML is specific to the tape management system and hardware involved. (For example, if you are involved in Tivoli Storage Manager, you must use a specific Mml-tivoli Data

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